def _get_config_with_retry(self, cxt, filters, site, service, retry):
conf_list = models.list_site_service_configurations(cxt, filters)
if len(conf_list) > 1:
raise exception.EndpointNotUnique(site, service)
if len(conf_list) == 0:
if not retry:
raise exception.EndpointNotFound(site, service)
self._update_endpoint_from_keystone(cxt, True)
return self._get_config_with_retry(cxt,
filters, site, service, False)
return conf_list
def _update_endpoint_from_keystone(self, cxt, is_internal):
"""Update the database by querying service endpoint url from Keystone
:param cxt: context object
:param is_internal: if True, this method utilizes pre-configured admin
username and password to apply an new admin token, this happens only
when auto_refresh_endpoint is set to True. if False, token in cxt is
directly used, users should prepare admin token themselves
:return: None
"""
if is_internal:
admin_context = tricircle_context.Context()
admin_context.auth_token = self._get_admin_token()
endpoint_map = self._get_endpoint_from_keystone(admin_context)
else:
endpoint_map = self._get_endpoint_from_keystone(cxt)
for region in endpoint_map:
# use region name to query site
site_filters = [{'key': 'site_name', 'comparator': 'eq',
'value': region}]
site_list = models.list_sites(cxt, site_filters)
# skip region/site not registered in cascade service
if len(site_list) != 1:
continue
for service in endpoint_map[region]:
site_id = site_list[0]['site_id']
config_filters = [{'key': 'site_id', 'comparator': 'eq',
'value': site_id},
{'key': 'service_type', 'comparator': 'eq',
'value': service}]
config_list = models.list_site_service_configurations(
cxt, config_filters)
if len(config_list) > 1:
raise exception.EndpointNotUnique(site_id, service)
if len(config_list) == 1:
config_id = config_list[0]['service_id']
update_dict = {
'service_url': endpoint_map[region][service]}
models.update_site_service_configuration(
cxt, config_id, update_dict)
else:
config_dict = {
'service_id': str(uuid.uuid4()),
'site_id': site_id,
'service_type': service,
'service_url': endpoint_map[region][service]
}
models.create_site_service_configuration(
cxt, config_dict)
